Yuan-Chi Chang Pietro Mazzoleni George A. Mihaila David Cohn Solving the Service Composition Puzzle. 387-394 2008 IEEE SCC (2) http://doi.ieeecomputersociety.org/10.1109/SCC.2008.61 conf/IEEEscc/2008 db/conf/IEEEscc/scc2008.html#ChangMMC08